   (add-overlay controller
                (reify IOverlay
                  (captured-controls [this] #{3 9 20 21})
-                 (captured-notes [this] #{})
+                 (captured-notes [this] #{0 1})
                  (adjust-interface [this controller]
                    ;; Make the metronome button bright, since its information is active
                    (swap! (:next-text-buttons controller)

  ;; TODO: Do other things when synced.
  ((:tap-tempo-handler controller)))

(defn- enter-metronome-showing
  "Activate the persistent metronome display, with sync and reset pads
  illuminated."

                                                             1 (top-pad-state :bright :green)))
                       true)))
                 (handle-note-on [this controller message]
                   ;; Whoops, user grabbed encoder closest to beat or BPM display
                   (case (:note message)
                     0 (encoder-above-beat-touched controller)
                     1 (encoder-above-bpm-touched controller))
                   true)
                 (handle-note-off [this controller message]
                   false))))

